ID: 2457

AQSQID: 401090097

Site Name: Near Road Okc

Added: April 21, 2020, 6:24 p.m.

Updated: Jan. 17, 2021, 2:31 a.m.

Location: Oklahoma City (Meridian Ave Corridor), OK

Reporting: True, Located: True

Current AQI: 63.0

Oklahoma City (Meridian Ave Corridor) OK, US: 35.502968, -97.577674

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 17, 2021, 1 a.m. 25.0 ppb (24) 1.0 ppb (1) N/A 23.0 ppb (22) N/A N/A N/A 0.6 ppb (7) 60.0 μg/m3 (54) 17.4 μg/m3 (63) 63.0
 
Jan. 17, 2021, midnight 27.0 ppb (26) 5.0 ppb (5) N/A 21.0 ppb (20) N/A N/A N/A 0.6 ppb (7) 45.0 μg/m3 (42) 12.6 μg/m3 (53) 53.0
 
Jan. 16, 2021, 11 p.m. 15.0 ppb (15) 1.0 ppb (1) N/A 13.0 ppb (13) N/A N/A N/A 0.4 ppb (5) 31.0 μg/m3 (29) 7.8 μg/m3 (33) 33.0
 
Jan. 16, 2021, 10 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 25.0 μg/m3 (24) 6.7 μg/m3 (28) 28.0
 
Jan. 16, 2021, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2021, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 2.9 μg/m3 (13) 13.0
 
Jan. 16, 2021, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 2.4 μg/m3 (10) 12.0
 
Jan. 16, 2021, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 2.6 μg/m3 (11) 13.0
 
Jan. 16, 2021, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 2.8 μg/m3 (12) 12.0
 
Jan. 16, 2021, 4 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 3.4 μg/m3 (15) 15.0
 
Jan. 16, 2021, 3 p.m. 7.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 3.7 μg/m3 (16) 16.0
 
Jan. 16, 2021, 2 p.m. 9.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 4.9 μg/m3 (21) 21.0
 
Jan. 16, 2021, 1 p.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 3.1 μg/m3 (13) 13.0
 
Jan. 16, 2021, noon 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2021, 11 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 3.3 μg/m3 (14) 14.0
 
Jan. 16, 2021, 10 a.m. 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 2.9 μg/m3 (13) 13.0
 
Jan. 16, 2021, 9 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 3.3 μg/m3 (14) 14.0
 
Jan. 16, 2021, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 3.4 μg/m3 (15) 15.0
 
Jan. 16, 2021, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 18.0 μg/m3 (17) 3.9 μg/m3 (17) 17.0
 
Jan. 16, 2021, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 3.6 μg/m3 (16) 16.0
 
Jan. 16, 2021, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 15.0 μg/m3 (14) 3.5 μg/m3 (15) 15.0
 
Jan. 16, 2021, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 18.0 μg/m3 (17) 3.9 μg/m3 (17) 17.0
 
Jan. 16, 2021, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 25.0 μg/m3 (24) 4.6 μg/m3 (20) 24.0
 
Jan. 16, 2021, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 33.0 μg/m3 (31) 5.2 μg/m3 (22) 31.0
 
Jan. 16, 2021, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) 36.0 μg/m3 (34) 5.7 μg/m3 (24) 34.0
 
Jan. 16, 2021, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) 35.0 μg/m3 (33) 5.6 μg/m3 (24) 33.0
 
Jan. 15, 2021, 11 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 33.0 μg/m3 (31) 5.2 μg/m3 (22) 31.0
 
Jan. 15, 2021, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 32.0 μg/m3 (30) 5.6 μg/m3 (24) 30.0
 
Jan. 15, 2021, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 27.0 μg/m3 (25) 3.9 μg/m3 (17) 25.0
 
Jan. 15, 2021, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 28.0 μg/m3 (26) 4.2 μg/m3 (18) 26.0
 
Jan. 15, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 39.0 μg/m3 (37) 5.0 μg/m3 (21) 37.0
 
Jan. 15, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 34.0 μg/m3 (32) 4.6 μg/m3 (20) 32.0
 
Jan. 15, 2021, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 37.0 μg/m3 (35) 4.7 μg/m3 (20) 35.0
 
Jan. 15, 2021, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 42.0 μg/m3 (39) 5.1 μg/m3 (22) 39.0
 
Jan. 15, 2021, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 45.0 μg/m3 (42) 5.9 μg/m3 (25) 42.0
 
Jan. 15, 2021, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 42.0 μg/m3 (39) 5.0 μg/m3 (21) 39.0
 
Jan. 15, 2021, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 30.0 μg/m3 (28) 4.1 μg/m3 (18) 28.0
 
Jan. 15, 2021, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 19.0 μg/m3 (18) 3.0 μg/m3 (13) 18.0
 
Jan. 15, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 15.0 μg/m3 (14) 2.3 μg/m3 (10) 14.0
 
Jan. 15, 2021, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 1.9 μg/m3 (8) 12.0
 
Jan. 15, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 9.0 μg/m3 (9) 1.5 μg/m3 (7) 9.0
 
Jan. 15, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 11.0 μg/m3 (11) 1.7 μg/m3 (8) 11.0
 
Jan. 15, 2021, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 1.9 μg/m3 (8) 12.0
 
Jan. 15, 2021, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 19.0
 
Jan. 15, 2021, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 28.0 μg/m3 (26) 3.8 μg/m3 (16) 26.0
 
Jan. 15, 2021, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 34.0 μg/m3 (32) 4.2 μg/m3 (18) 32.0
 
Jan. 15, 2021, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 31.0 μg/m3 (29) 4.3 μg/m3 (18) 29.0
 
Jan. 15, 2021, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 34.0 μg/m3 (32) 4.8 μg/m3 (20) 32.0
 
Jan. 15, 2021, 1 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 39.0 μg/m3 (37) 5.4 μg/m3 (23) 37.0
 
Jan. 15, 2021, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (4) 32.0 μg/m3 (30) 4.4 μg/m3 (19) 30.0
 
Jan. 14, 2021, 11 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) 28.0 μg/m3 (26) 3.8 μg/m3 (16) 26.0
 
Jan. 14, 2021, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 22.0 μg/m3 (21) 3.3 μg/m3 (14) 21.0
 
Jan. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 34.0 μg/m3 (32) 4.1 μg/m3 (18) 32.0
 
Jan. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 29.0 μg/m3 (27) 3.9 μg/m3 (17) 27.0
 
Jan. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 31.0 μg/m3 (29) 4.6 μg/m3 (20) 29.0
 
Jan. 14, 2021, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 45.0 μg/m3 (42) 6.0 μg/m3 (25) 42.0
 
Jan. 14, 2021, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.3 ppb (4) 50.0 μg/m3 (47) 6.6 μg/m3 (28) 47.0
 
Jan. 14, 2021, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 46.0 μg/m3 (43) 7.1 μg/m3 (30) 43.0
 
Jan. 14, 2021, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 41.0 μg/m3 (38) 6.4 μg/m3 (27) 38.0
 
Jan. 14, 2021, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 42.0 μg/m3 (39) 6.4 μg/m3 (27) 39.0
 
Jan. 14, 2021, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) 52.0 μg/m3 (49) 7.2 μg/m3 (31) 49.0
 
Jan. 14, 2021, noon 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (4) 59.0 μg/m3 (53) 7.0 μg/m3 (30) 53.0
 
Jan. 14, 2021, 11 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 17.0 ppb (17) N/A N/A N/A 0.4 ppb (5) 16.0 μg/m3 (15) 8.4 μg/m3 (36) 36.0
 
Jan. 14, 2021, 10 a.m. 32.0 ppb (31) 10.0 ppb (10) N/A 21.0 ppb (20) N/A N/A N/A 0.5 ppb (6) 19.0 μg/m3 (18) 8.2 μg/m3 (35) 35.0
 
Jan. 14, 2021, 9 a.m. 23.0 ppb (22) 4.0 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (5) 18.0 μg/m3 (17) 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, 8 a.m. 13.0 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (13) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 7.2 μg/m3 (31) 31.0
 
Jan. 14, 2021, 7 a.m. 10.0 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (11) N/A N/A N/A 0.4 ppb (5) 13.0 μg/m3 (13) 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2021, 6 a.m. 11.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.4 ppb (5) 17.0 μg/m3 (16) 7.2 μg/m3 (31) 31.0
 
Jan. 14, 2021, 5 a.m. 9.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 15.0 μg/m3 (14) 6.7 μg/m3 (28) 28.0
 
Jan. 14, 2021, 4 a.m. 9.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 15.0 μg/m3 (14) 6.3 μg/m3 (27) 27.0
 
Jan. 14, 2021, 3 a.m. 11.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (11) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 2 a.m. 16.0 ppb (16) 2.0 ppb (2) N/A 14.0 ppb (14) N/A N/A N/A 0.4 ppb (5) 22.0 μg/m3 (21) 7.3 μg/m3 (31) 31.0
 
Jan. 14, 2021, 1 a.m. 16.0 ppb (16) 0.0 ppb (0) N/A 15.0 ppb (15) N/A N/A N/A 0.4 ppb (5) 30.0 μg/m3 (28) 9.3 μg/m3 (39) 39.0
 
Jan. 14, 2021, midnight 19.0 ppb (18) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A N/A 0.4 ppb (5) 27.0 μg/m3 (25) 8.2 μg/m3 (35) 35.0
 
Jan. 13, 2021, 11 p.m. 12.0 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (11) N/A N/A N/A 0.4 ppb (5) 31.0 μg/m3 (29) 8.7 μg/m3 (37) 37.0
 
Jan. 13, 2021, 10 p.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 31.0 μg/m3 (29) 8.5 μg/m3 (36) 36.0
 
Jan. 13, 2021, 9 p.m. 10.0 ppb (10) 2.0 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.3 ppb (4) 25.0 μg/m3 (24) 7.7 μg/m3 (33) 33.0
 
Jan. 13, 2021, 8 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 27.0 μg/m3 (25) 8.1 μg/m3 (34) 34.0
 
Jan. 13, 2021, 7 p.m. 21.0 ppb (20) 11.0 ppb (11) N/A 10.0 ppb (10) N/A N/A N/A 0.4 ppb (5) 32.0 μg/m3 (30) 11.6 μg/m3 (49) 49.0
 
Jan. 13, 2021, 6 p.m. 13.0 ppb (13) 5.0 ppb (5) N/A 7.0 ppb (7) N/A N/A N/A 0.4 ppb (5) 36.0 μg/m3 (34) 14.2 μg/m3 (56) 56.0
 
Jan. 13, 2021, 5 p.m. 12.0 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 47.0 μg/m3 (44) 17.7 μg/m3 (63) 63.0
 
Jan. 13, 2021, 4 p.m. 19.0 ppb (18) 7.0 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A 0.4 ppb (5) 38.0 μg/m3 (36) 18.5 μg/m3 (65) 65.0
 
Jan. 13, 2021, 3 p.m. 31.0 ppb (30) 9.0 ppb (9) N/A 21.0 ppb (20) N/A N/A N/A 0.4 ppb (5) 35.0 μg/m3 (33) 21.0 μg/m3 (70) 70.0
 
Jan. 13, 2021, 2 p.m. 42.0 ppb (40) 20.0 ppb (19) N/A 22.0 ppb (21) N/A N/A N/A 0.6 ppb (7) 37.0 μg/m3 (35) 22.1 μg/m3 (73) 73.0
 
Jan. 13, 2021, 1 p.m. 40.0 ppb (38) 15.0 ppb (15) N/A 25.0 ppb (24) N/A N/A N/A 0.6 ppb (7) 30.0 μg/m3 (28) 19.9 μg/m3 (68) 68.0
 
Jan. 13, 2021, noon 26.0 ppb (25) 4.0 ppb (4) N/A 22.0 ppb (21) N/A N/A N/A 0.5 ppb (6) 26.0 μg/m3 (25) 18.3 μg/m3 (65) 65.0
 
Jan. 13, 2021, 11 a.m. 28.0 ppb (27) 7.0 ppb (7) N/A 21.0 ppb (20) N/A N/A N/A 0.4 ppb (5) 26.0 μg/m3 (25) 19.0 μg/m3 (66) 66.0
 
Jan. 13, 2021, 10 a.m. 17.0 ppb (17) 1.0 ppb (1) N/A 16.0 ppb (16) N/A N/A N/A 0.4 ppb (5) 26.0 μg/m3 (25) 19.4 μg/m3 (67) 67.0
 
Jan. 13, 2021, 9 a.m. 12.0 ppb (12) 0.0 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.3 ppb (4) 23.0 μg/m3 (22) 18.5 μg/m3 (65) 65.0
 
Jan. 13, 2021, 8 a.m. 13.0 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (13) N/A N/A N/A 0.4 ppb (5) 25.0 μg/m3 (24) 18.9 μg/m3 (66) 66.0
 
Jan. 13, 2021, 7 a.m. 13.0 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (13) N/A N/A N/A 0.4 ppb (5) 24.0 μg/m3 (23) 18.0 μg/m3 (64) 64.0
 
Jan. 13, 2021, 6 a.m. 20.0 ppb (19) 0.0 ppb (0) N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (5) 26.0 μg/m3 (25) 18.6 μg/m3 (65) 65.0
 
Jan. 13, 2021, 5 a.m. 15.0 ppb (15) 0.0 ppb (0) N/A 15.0 ppb (15) N/A N/A N/A 0.4 ppb (5) 24.0 μg/m3 (23) 16.9 μg/m3 (62) 62.0
 
Jan. 13, 2021, 4 a.m. 12.0 ppb (12) 0.0 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.4 ppb (5) 29.0 μg/m3 (27) 20.7 μg/m3 (70) 70.0
 
Jan. 13, 2021, 3 a.m. 13.0 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A N/A N/A 0.4 ppb (5) 26.0 μg/m3 (25) 15.3 μg/m3 (58) 58.0
 
Jan. 13, 2021, 2 a.m. 10.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (10) N/A N/A N/A 0.4 ppb (5) 25.0 μg/m3 (24) 13.6 μg/m3 (55) 55.0
 
Jan. 13, 2021, 1 a.m. 12.0 ppb (12) 0.0 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.4 ppb (5) 28.0 μg/m3 (26) 13.3 μg/m3 (54) 54.0
 
Jan. 13, 2021, midnight 26.0 ppb (25) 7.0 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) 31.0 μg/m3 (29) 14.9 μg/m3 (57) 57.0
 
Jan. 12, 2021, 11 p.m. 15.0 ppb (15) 2.0 ppb (2) N/A 13.0 ppb (13) N/A N/A N/A 0.4 ppb (5) 38.0 μg/m3 (36) 13.4 μg/m3 (54) 54.0
 
Jan. 12, 2021, 10 p.m. 11.0 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.4 ppb (5) 36.0 μg/m3 (34) 12.3 μg/m3 (52) 52.0
 
Jan. 12, 2021, 9 p.m. 14.0 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (8) N/A N/A N/A 0.4 ppb (5) 37.0 μg/m3 (35) 12.4 μg/m3 (52) 52.0
 
Jan. 12, 2021, 8 p.m. 15.0 ppb (15) 6.0 ppb (6) N/A 8.0 ppb (8) N/A N/A N/A 0.4 ppb (5) 33.0 μg/m3 (31) 12.8 μg/m3 (53) 53.0
 
Jan. 12, 2021, 7 p.m. 13.0 ppb (13) 5.0 ppb (5) N/A 7.0 ppb (7) N/A N/A N/A 0.3 ppb (4) 25.0 μg/m3 (24) 13.2 μg/m3 (54) 54.0
 
Jan. 12, 2021, 6 p.m. 9.0 ppb (9) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (4) 24.0 μg/m3 (23) 12.7 μg/m3 (53) 53.0
 
Jan. 12, 2021, 5 p.m. 10.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.3 ppb (4) 21.0 μg/m3 (20) 12.6 μg/m3 (53) 53.0
 
Jan. 12, 2021, 4 p.m. 15.0 ppb (15) 5.0 ppb (5) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 36.0 μg/m3 (34) 14.4 μg/m3 (56) 56.0
 
Jan. 12, 2021, 3 p.m. 23.0 ppb (22) 9.0 ppb (9) N/A 14.0 ppb (14) N/A N/A N/A 0.4 ppb (5) 24.0 μg/m3 (23) 13.6 μg/m3 (55) 55.0
 
Jan. 12, 2021, 2 p.m. 27.0 ppb (26) 6.0 ppb (6) N/A 21.0 ppb (20) N/A N/A N/A 0.4 ppb (5) 22.0 μg/m3 (21) 12.4 μg/m3 (52) 52.0
 
Jan. 12, 2021, 1 p.m. 26.0 ppb (25) 3.0 ppb (3) N/A 22.0 ppb (21) N/A N/A N/A 0.4 ppb (5) 22.0 μg/m3 (21) 11.6 μg/m3 (49) 49.0
 
Jan. 12, 2021, noon 17.0 ppb (17) 0.0 ppb (0) N/A 16.0 ppb (16) N/A N/A N/A 0.4 ppb (5) 16.0 μg/m3 (15) 11.8 μg/m3 (50) 50.0
 
Jan. 12, 2021, 11 a.m. 14.0 ppb (14) 0.0 ppb (0) N/A 14.0 ppb (14) N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 10.1 μg/m3 (43) 43.0
 
Jan. 12, 2021, 10 a.m. 16.0 ppb (16) 0.0 ppb (0) N/A 16.0 ppb (16) N/A N/A N/A 0.3 ppb (4) 14.0 μg/m3 (13) 9.7 μg/m3 (41) 41.0
 
Jan. 12, 2021, 9 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (5) 12.0 μg/m3 (12) 8.3 μg/m3 (35) 35.0
 
Jan. 12, 2021, 8 a.m. 16.0 ppb (16) 0.0 ppb (0) N/A 16.0 ppb (16) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
Jan. 12, 2021, 7 a.m. 11.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
Jan. 12, 2021, 6 a.m. 12.0 ppb (12) 0.0 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.3 ppb (4) 14.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
Jan. 12, 2021, 5 a.m. 14.0 ppb (14) 0.0 ppb (0) N/A 14.0 ppb (14) N/A N/A N/A 0.3 ppb (4) 17.0 μg/m3 (16) 9.3 μg/m3 (39) 39.0
 
Jan. 12, 2021, 4 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (5) 18.0 μg/m3 (17) 10.3 μg/m3 (43) 43.0
 
Jan. 12, 2021, 3 a.m. 24.0 ppb (23) 2.0 ppb (2) N/A 22.0 ppb (21) N/A N/A N/A 0.5 ppb (6) 25.0 μg/m3 (24) 11.9 μg/m3 (50) 50.0
 
Jan. 12, 2021, 2 a.m. 61.0 ppb (59) 29.0 ppb (28) N/A 32.0 ppb (31) N/A N/A N/A 1.0 ppb (12) 50.0 μg/m3 (47) 23.2 μg/m3 (75) 75.0
 
Jan. 12, 2021, 1 a.m. 50.0 ppb (48) 19.0 ppb (18) N/A 31.0 ppb (30) N/A N/A N/A 0.9 ppb (11) 46.0 μg/m3 (43) 21.9 μg/m3 (72) 72.0
 
Jan. 12, 2021, midnight 28.0 ppb (27) 2.0 ppb (2) N/A 25.0 ppb (24) N/A N/A N/A 0.6 ppb (7) 23.0 μg/m3 (22) 8.3 μg/m3 (35) 35.0
 
Jan. 11, 2021, 11 p.m. 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2021, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 10.0 μg/m3 (10) 4.8 μg/m3 (20) 20.0
 
Jan. 11, 2021, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (4) 10.0 μg/m3 (10) 5.1 μg/m3 (22) 22.0
 
Jan. 11, 2021, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
Jan. 11, 2021, 7 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 6.6 μg/m3 (28) 28.0
 
Jan. 11, 2021, 6 p.m. 7.0 ppb (7) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
Jan. 11, 2021, 5 p.m. 14.0 ppb (14) 5.0 ppb (5) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 24.0 μg/m3 (23) 12.9 μg/m3 (53) 53.0
 
Jan. 11, 2021, 4 p.m. 13.0 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (8) N/A N/A N/A 0.4 ppb (5) 27.0 μg/m3 (25) 15.8 μg/m3 (59) 59.0
 
Jan. 11, 2021, 3 p.m. 18.0 ppb (17) 5.0 ppb (5) N/A 13.0 ppb (13) N/A N/A N/A 0.4 ppb (5) 28.0 μg/m3 (26) 17.6 μg/m3 (63) 63.0
 
Jan. 11, 2021, 2 p.m. 83.0 ppb (82) 55.0 ppb (53) N/A 27.0 ppb (26) N/A N/A N/A 1.1 ppb (13) 34.0 μg/m3 (32) 20.0 μg/m3 (68) 82.0
 
Jan. 11, 2021, 1 p.m. 63.0 ppb (61) 39.0 ppb (37) N/A 23.0 ppb (22) N/A N/A N/A 0.9 ppb (11) 30.0 μg/m3 (28) 17.8 μg/m3 (63) 63.0
 
Jan. 11, 2021, noon 34.0 ppb (33) 11.0 ppb (11) N/A 22.0 ppb (21) N/A N/A N/A 0.5 ppb (6) 25.0 μg/m3 (24) 16.1 μg/m3 (60) 60.0
 
Jan. 11, 2021, 11 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (5) 24.0 μg/m3 (23) 15.8 μg/m3 (59) 59.0
 
Jan. 11, 2021, 10 a.m. 14.0 ppb (14) 0.0 ppb (0) N/A 14.0 ppb (14) N/A N/A N/A 0.4 ppb (5) 23.0 μg/m3 (22) 15.1 μg/m3 (58) 58.0
 
Jan. 11, 2021, 9 a.m. 21.0 ppb (20) 6.0 ppb (6) N/A 15.0 ppb (15) N/A N/A N/A 0.4 ppb (5) 24.0 μg/m3 (23) 14.9 μg/m3 (57) 57.0
 
Jan. 11, 2021, 8 a.m. 17.0 ppb (17) 5.0 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.4 ppb (5) 23.0 μg/m3 (22) 14.2 μg/m3 (56) 56.0
 
Jan. 11, 2021, 7 a.m. 14.0 ppb (14) 3.0 ppb (3) N/A 10.0 ppb (10) N/A N/A N/A 0.4 ppb (5) 20.0 μg/m3 (19) 12.9 μg/m3 (53) 53.0
 
Jan. 11, 2021, 6 a.m. 21.0 ppb (20) 8.0 ppb (8) N/A 13.0 ppb (13) N/A N/A N/A 0.5 ppb (6) 21.0 μg/m3 (20) 12.6 μg/m3 (53) 53.0
 
Jan. 11, 2021, 5 a.m. 21.0 ppb (20) 8.0 ppb (8) N/A 12.0 ppb (12) N/A N/A N/A 0.4 ppb (5) 19.0 μg/m3 (18) 12.1 μg/m3 (51) 51.0
 
Jan. 11, 2021, 4 a.m. 21.0 ppb (20) 7.0 ppb (7) N/A 13.0 ppb (13) N/A N/A N/A 0.5 ppb (6) 20.0 μg/m3 (19) 13.3 μg/m3 (54) 54.0
 
Jan. 11, 2021, 3 a.m. 12.0 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (10) N/A N/A N/A 0.3 ppb (4) 18.0 μg/m3 (17) 12.2 μg/m3 (52) 52.0
 
Jan. 11, 2021, 2 a.m. 9.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 25.0 μg/m3 (24) 15.6 μg/m3 (59) 59.0
 
Jan. 11, 2021, 1 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 19.0 μg/m3 (18) 12.8 μg/m3 (53) 53.0
 
Jan. 11, 2021, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (4) 17.0 μg/m3 (16) 10.2 μg/m3 (43) 43.0
 
Jan. 10, 2021, 11 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 17.0 μg/m3 (16) 11.6 μg/m3 (49) 49.0
 
Jan. 10, 2021, 10 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 18.0 μg/m3 (17) 13.0 μg/m3 (53) 53.0
 
Jan. 10, 2021, 9 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) 21.0 μg/m3 (20) 15.0 μg/m3 (58) 58.0
 
Jan. 10, 2021, 8 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) 19.0 μg/m3 (18) 13.6 μg/m3 (55) 55.0
 
Jan. 10, 2021, 7 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) 20.0 μg/m3 (19) 14.5 μg/m3 (57) 57.0
 
Jan. 10, 2021, 6 p.m. 9.0 ppb (9) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) 24.0 μg/m3 (23) 17.6 μg/m3 (63) 63.0
 
Jan. 10, 2021, 5 p.m. 10.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.3 ppb (4) 27.0 μg/m3 (25) 19.6 μg/m3 (67) 67.0
 
Jan. 10, 2021, 4 p.m. 19.0 ppb (18) 8.0 ppb (8) N/A 10.0 ppb (10) N/A N/A N/A 0.4 ppb (5) 30.0 μg/m3 (28) 21.2 μg/m3 (71) 71.0
 
Jan. 10, 2021, 3 p.m. 20.0 ppb (19) 10.0 ppb (10) N/A 10.0 ppb (10) N/A N/A N/A 0.4 ppb (5) 29.0 μg/m3 (27) 21.4 μg/m3 (71) 71.0
 
Jan. 10, 2021, 2 p.m. 16.0 ppb (16) 6.0 ppb (6) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 27.0 μg/m3 (25) 19.6 μg/m3 (67) 67.0
 
Jan. 10, 2021, 1 p.m. 14.0 ppb (14) 4.0 ppb (4) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 26.0 μg/m3 (25) 19.5 μg/m3 (67) 67.0
 
Jan. 10, 2021, noon 10.0 ppb (10) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 27.0 μg/m3 (25) 21.3 μg/m3 (71) 71.0
 
Jan. 10, 2021, 11 a.m. 13.0 ppb (13) 4.0 ppb (4) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 27.0 μg/m3 (25) 21.2 μg/m3 (71) 71.0
 
Jan. 10, 2021, 10 a.m. 11.0 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A 0.4 ppb (5) 26.0 μg/m3 (25) 20.3 μg/m3 (69) 69.0
 
Jan. 10, 2021, 9 a.m. 10.0 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (4) 23.0 μg/m3 (22) 18.1 μg/m3 (64) 64.0
 
Jan. 10, 2021, 8 a.m. 16.0 ppb (16) 5.0 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.4 ppb (5) 21.0 μg/m3 (20) 16.8 μg/m3 (61) 61.0
 
Jan. 10, 2021, 7 a.m. 14.0 ppb (14) 2.0 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.4 ppb (5) 20.0 μg/m3 (19) 15.5 μg/m3 (59) 59.0
 
Jan. 10, 2021, 6 a.m. 9.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.4 ppb (5) 21.0 μg/m3 (20) 16.2 μg/m3 (60) 60.0
 
Jan. 10, 2021, 5 a.m. 13.0 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A N/A N/A 0.4 ppb (5) 22.0 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
Jan. 10, 2021, 4 a.m. 24.0 ppb (23) 8.0 ppb (8) N/A 15.0 ppb (15) N/A N/A N/A 0.5 ppb (6) 23.0 μg/m3 (22) 17.4 μg/m3 (63) 63.0
 
Jan. 10, 2021, 3 a.m. 26.0 ppb (25) 9.0 ppb (9) N/A 17.0 ppb (17) N/A N/A N/A 0.5 ppb (6) 25.0 μg/m3 (24) 19.2 μg/m3 (66) 66.0
 
Jan. 10, 2021, 2 a.m. 33.0 ppb (32) 14.0 ppb (14) N/A 18.0 ppb (17) N/A N/A N/A 0.6 ppb (7) 29.0 μg/m3 (27) 20.4 μg/m3 (69) 69.0